| DMU | θ (A/B) | σ (A/B) | Φs (A/B) | Returns to scale |
| 2008 | 0.484 | 1.000 | 0.484 | Increase |
| 2009 | 0.566 | 1.000 | 0.566 | Increase |
| 2010 | 0.582 | 1.000 | 0.582 | Increase |
| 2011 | 0.684 | 0.995 | 0.687 | Increase |
| 2012 | 0.805 | 1.000 | 0.805 | Increase |
| 2013 | 0.894 | 0.974 | 0.918 | Increase |
| 2014 | 1.000 | 1.000 | 1.000 | No change |